I wondered about bipolar/personality disorder with my boy but again is it the drugs causing it, I really don’t know. Yes I know what you mean about the phone, when my son wants something, my phone and text go constantly, so block him for 24 hours. There is no easy quick fix, I am slowly learning that, but as I have become harder with my son, he bothers me less for money, things are far from good or right but I have some peace now, you are in the place I was maybe2/3 months ago. It is so so difficult to do this tough love thing, I don’t know if it works but I do know that my son cannot manipulate me like he used to. Sometimes when he is abusive on the phone I hang up and turn it off, he knows now if he wants a conversation its best to speak at least civil to me. good luck x